Ultra Wide Band Time Difference Of Arrival Sensor

Period of Performance: 07/01/2004 - 04/30/2005


Phase 1 STTR

Recipient Firm

Intelligent Automation, Inc.
15400 Calhoun Dr, Suite 190
Rockville, MD 20855
Firm POC
Principal Investigator

Research Institution

University of Central Florida
4000 Central Florida Boulevard
Orlando, FL 32816
Institution POC


We propose to develop an innovative way to wirelessly synchronize multiple RF receivers using ultra wideband (UWB) transceivers (radios). UWB spreads its energy over several Giga Hertz so it is highly LPI/LPD. This method does not rely on GPS so the synchronization will be maintained when the GPS signal is not available. A time resolution better than 1 nanosecond is achievable using existing UWB chipsets. The same link that is used for time synchronization can also carry data for two-way communication, and provide fast, accurate ranging in both Line of Sight (LOS), and non-LOS environments. The synchronization, ranging, and data link capabilities of UWB technology provide all the key elements of an extremely capable Time Difference Of Arrival Sensor. The most critical functions are already implemented in Silicon-Germanium (SiGe) chips, so the hardware to implement this time synchronization and ranging scheme can be very low-cost and simple.